The Nut,plain,cap, cataloged under National Stock Number 5310-00-401-9233, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Viking Pump, Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-401-9233 |
| Primary Part Number | 2-798-007-100 |
| Item Name | Nut,plain,cap |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Viking Pump, Inc |
| Status | ACTIVE |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.875 INCHES IN |
| Nut Height | 2.120 INCHES NOMINAL IN |
| Countersink Angle | 90.0 DEGREES NOMINAL FIRST END |
| Nut Style | CAP |
| Thread Class | 2B |
| Thread Quantity Per Inch | 14 |
| Material | IRON ALLOY OVERALL |
| Bearing Surface Type | WASHER FACED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5127-1100 | Cooper Machinery Services Llc (USA) |
| 51271100 | Cooper Machinery Services Llc (USA) |
| 2-798-007-100 PRIMARY | Viking Pump, Inc (USA) |
| Reference | Meaning |
|---|---|
| 51271100 | 5/9 Secondary reference Energy Services Group Div of Cooper Industries Inc |
| 52LLR | 5/9 Secondary reference Viking Pump, Inc |
| 5127-1100 | 5/9 Secondary reference Energy Services Group Div of Cooper Industries Inc |
NSN 5310-00-401-9233 is a Nut,plain,cap, manufactured by Viking Pump, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-401-9233 has 3 manufacturer part numbers on file: 5127-1100 (Cooper Machinery Services Llc), 51271100 (Cooper Machinery Services Llc), 2-798-007-100 (Viking Pump, Inc).
Key specifications for 2-798-007-100: Width Across Flats: 1.250 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.875 INCHES IN. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.